Centrifugal liquid-separator.



No. 855,189. V I I YPATENTED MAY 28, 1907.

B. L'JUNGSTRUM.

.GENTRIFUGAL LIQUID SEPARATOR.

APPLICATION IILBD ps0. 16, 1.904.

JfiZ-Weses. I a Y [73716702071 separators wherein the a subject of the'King outrun snares sirens caries.

BIRGER LJUNGSTRGM, OF STQCKEOLM, SWEDEN, ASSIGNOR TO AKTIEBOLA- GET SEPARATOR, OF STOCKHOLM, SWEDEN, A COMPANY- CENTREFUGAL il u'smsE-P nAro a.

To aaZZ whom it may-concern.-

Be it known that I, Bmenn LJoNes'rRoM', of Sweden, residing at Stockholm, Sweden, have invented certain new and useful Improvements in'Centrifugal LiquidScparators; and I do hereby declare the following to be a full, hlear, andexactdescription of the invention, such as will enable others skilled inthe art 'to which it appertaius to make and use thesame, reference being'had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specificat1on.

, My invention relates tothat class of liquidseparators, in which in the liquid space of the bowl there isa plurality of p'latps which-intersect the radial lineof the bow My invention relates specifically to the improvement in the feed device for this class of.

milk is injected between the outer and theinner edges of adjacent platesoutside the cream-wall.

A feed device of this kind consists of bent ribs, provided with narrow slits or openings communicating with the interior of the cen tral feed pipe and opening into the spaces between the curyed plates of partitions.

As well known, theskimming capacity of a cream separator is essentially dependent upon the skimming surface of the bowl liner. The greater the'number of skimming plates and the nearer to each other the same are placed within a certain limit, the greater skimming capacity the bowl has, i. e. the greater (l uantity 'of milk can be separated in the bow per unit of time. For this reason the plates in modern cream separators of this kind are placed at a distance from each other, which at the inner edges do not exceed 0.4 to 0.8 mm. With such small spaces between the plates it isobvious that the device above described cannot be used because there is no place for such inlet devices. And even if such bent ribs could he placed plates, the slits would. be very narrow and thus very diificult to cleanse.

y invention has for object ancther'feed device, by which the new mill; is distributed between thecurved plates outside the cream wall in the neutral zone of the creamer, but which does not possess the above mentioned disadvantages.

Specification of Letters ?atent. Application filed December 16, 1904 1ntersecting the radial line of the bowl.

upright blades or one may between the Patented may 28, 119G?- sel-al No. 237.114.

I will now descrihe the embodiment of my invention as shown in the annexed drawings. Figure 1 1s a vertical section through the bowl of a centrifugal separator a'ndFig. 2 is a cross-section on line 1+j-1, Fig. 1. Fi 3 is a cross-section on line 22, Fig. 2, of t e distributing ring.

a is the bowl, I; is the covr, c the feed or supply pipe-d a plurality of upright plartfis e central feed tube 0,-reaching only to one-half of the height of the bowl or thercabou-t, is, as shown on the drawing, at the'bottom provided with radial pipes e, the other ends of which communicate with the interior of a ring f,

concentric to the feed tube and opening out- -W&I'Cl as shown especially on the crosssection, Fig, 3. The distance from the center line of the bowl to the outer end of this ring f is greater than the radial distance from the said central line to the inner wall of the liner. in consequence thereof notches g are made in each plate at the same height and correspondingto the ringif, in order that this enter the circular recess 'thus formed. By the separating process the cream, as Well known, forms a cylindrical layer, whose outer wall coincides with the inner Wall of the liner, or nearly so, and the radial extension of the ring is therefore thus chosen so, that. the milk conducted to the.

same through the hollow arms or be thrown out behind the cream neutral zone.

Gwing to the rotation of the bowl the milk, on leaving the pipes is thrown out in tangential direction in the spaces between the upright plates. In these spaces the sep pipes may well in the arating process takes place in the well known manner whereby the separated cream passes toward the center and farther 11 Ward, escaping through the cream the skim milk passes the outer circumference of the bowl and. escapes through the skimmilk pipes i.

Having now fully described my invention, what- I- claim, and desire to protect by Letters Patent, is:

1. In a centrifugal creamer, a liner consisting of a plurality of upright plates intersectin the radial line of the bowl, each of said plates having its inner edge cut away forming an annular recess, a ring mounted in said recess opening toward the Wall ofthe outlet whereas, v

,bowl and a central feed tube communicating forming an annular recess about midway of the height of the bowl, a ring in said recess having an opening facing the inner wall of the bowl, the distance between said opening and the center of the bowl being greater than the distance'between said center and the inner edges of the plates, a central feed tube, and radial pi es connecting the latter With the interior 0 the ring.

3. In a centrifugal" creamer, a liner consisting of a plurality of upright plates intersecting the radial line of the bowl, each of said plates having a rectangular notch in its inner edge forming anannular recess in the liner, and means to direct new milk into said recess.

'4. In a centrifugal creamer; a liner consisting of a'pluralityof upright curved plates intersecting the radial line of the bowl, each of said plates having a rectangular notch in its inner edge between its ends forming an annular recess in the liner, and means to direct new milk into said recess.-

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

BIRGER LJUNGSTROM.

Witnesses:

Tn. WAWRINSKY, HARRY ALBIHN. 

